Michael, the advertised power ratings for receiver/amplifiers are one of the few things advertised in audio that we can rely on to be true. The FTC has specific regulations for measuring power and any receiver/amplifier advertised for sale in the U.S. has to comply. Unless the manufacturer specifically includes an all channels driven rating, the rating shown is measured with two channels being driven simultaneously at the full rated power for at least five minutes continuously. So the way that you find out the "real" power is to simply read the manufacturer's specs. I've noticed that one review of the 1015 measured 130 watts with two channels driven. As far as 7 channels driven simultaneously at full power for five minutes, this is a lab torture test that would never be duplicated in home use, so it's unrealistic and shouldn't be given much weight. If that type of rating is advertised then it has to be met; most manufacturers don't advertise such a rating and it might be anywhere from about 1/4 to 3/4s of the two channel rating.
